Pillow



FIG. 1 is a front view of the pillow embodying my ornamental design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof, the bottom plan view being identical therewith;

FIG. 4 is a left side view thereof, the right side view being identical therewith; and,

FIG. 5 is an environmental perspective view depicting the pillow in position strapped to a headrest of an associated seat.

The broken line showing of a chair is for illustrative purposes only and forms no part of the claimed design.

In the drawings, the broken lines represent environmental structure forming no part of the claim. 

The ornamental design for a pillow, as shown and described. 